Phosphonic acid based ion exchange resins
US5539003A · kind A · utility
10Cited by
18References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 25, 1995 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Apr 25, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J39/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An ion exchange resin for extracting metal ions from a liquid waste stream. An ion exchange resin is prepared by copolymerizing a vinylidene diphosphonic acid with styrene, acrylonitrile and divinylbenzene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.